Nellie Laura Heath Morris

Nellie Laura Heath Morris

I am wondering if there is any place that lists people in the cemeteries in Boone County. I am lookin for Nellie Laura Heath Morris. She was married to a Fremont Morris. I find her on the census up until 1910 then she is gone by 1920 Fremont is still in Albion Boone County Nebraska. Does any one might know where they might be buried? Also there death dates? Thank you for your time